The San Francisco-based company saw shares (ZNGA) fall to $3.01, down 14 percent, the largest single-day drop since last July, at one point hitting a nadir of $2.81.
“While the company continues to evaluate its real-money gaming products in the U.K. test, Zynga is making a focused choice not to pursue a license for real-money gaming in the U.S.,” the company said in a statement.
This week's disappointment comes after a year of optimism -- and 48 percent stock growth -- that Zynga could tap into the gambling market and turn it into real revenue.
Zynga also said user access had dropped and forecast lower third-quarter sales.
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